html {
   font-size: 12px
} 

.form-check-input:checked {
    background-color: lightgoldenrodyellow !important;
    border-color: lightgoldenrodyellow !important;
}

    /*Veranderen achtergrondkleur van een checkbox bij 'stroke'*/
    .form-check-input:checked[type=checkbox] {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23000000' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10l3 3l6-6'/%3e%3c/svg%3e");
    }